four years ago 和 four years earlier 都是表示四年以前吗?一样的意思?

four years ago 和 four years earlier 都是表示四年以前吗?一样的意思? four years ago翻译成中文是什么意思? my brother left school four years ago（同义句）my brother_______school since four years age. 句型转换she left her hometown four years agoshe()()()()her hometown since four years ago Mrs White left America four years ago用for four years 改写句子 over four years ago的over什么意思 Four years ago so fast so difficult什么意思? he join the party four years ago.为什么不是he join the party is four years ago? from 400 years ago和about 400 years ago 区别 I became a teacher four years ago.(改为同义句)I ____ ____ a teacher ____ four years . four years Four Years four-year 和four years有什么区别? 译：four score and seven years ago...four score and seven years ago,our fathers brought foth on this continent a new nation Selina lived in America four years ago(对画线的部分提问：four years ago)__________ _________ Selina ______ in America? some years ago 和long time ago一样吗如题 ten years ago 和 a decade ago的区别 how long has lucy been a nurse ---------------------------[since 2002;four years ago]